ASX621_17 Datasheet, PDF (4/12 Pages) Advanced Semiconductor Business Inc. – 250 ~ 3000 MHz MMIC Amplifier

ASX621
250 ~ 3000 MHz MMIC Amplifier
APPLICATION CIRCUIT
CDMA Tx, GSM
869 ~ 960 MHz
+5 V
Frequency (MHz)
869
960
Magnitude S21 (dB)
31.0
26.0
Magnitude S11 (dB)
-13.0
-18.0
Magnitude S22 (dB)
-8.0
-7.5
Output P1dB (dBm)
32.5
32.5
Output IP3¹⁾ (dBm)
47
48
Noise Figure (dB)
11.0
11.0
Device Voltage (V)
+5
+5
Current (mA)
1150
1150
1) OIP3 is measured with two tones at an output power of +15
dBm/tone separated by 1 MHz.
Schematic
Vcc=5 V
D1=5.6V
Zener Diode
C9=1 F
*C4 shall be placed as close as
possible to the pin.
C8=100pF
C5=9 pF
C4=12 pF
RF IN
L2=56 nH
(Coil Inductor)
C1=2 pF
R1=15 
ASX621
C7=1 F
C6=100pF
L1=56 nH
(Coil Inductor)
C2=100 pF
RF OUT
6.5 mm
C3=7.5 pF
Board Layout (FR4, 40x40 mm², 0.8T)
S-parameters
35
0
30
-5
25
-10
20
-15
15
-20
10
600
700
800
900
1000
1100
1200
Frequency (MHz)
5
-25
600
700
800
900
1000
1100
1200
Frequency (MHz)
5
4
0
3
-5
2
-10
1
4/12
-15
600
700
800
900
1000
1100
1200
Frequency (MHz)
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
ASB Inc.  [e-mail]  Tel: [phone]
February 2017